Expansion Board

Expansion Board

Our series of expansion boards are specially engineered for Arduino controllers, including MEGA2560, NANO V3.0, Pro Mini, DUE and ESP8266 NodeMCU platforms, delivering reliable I/O expansion for DIY projects and industrial PLC control applications.

We offer diversified relay expansion modules ranging from 1-channel to 8-channel options with DC 12V / 24V power supply. Multiple practical working modes are supported: delay timing control, cycle switch, self-locking, interlock and low pulse trigger functions. Selected models integrate RS485 communication interface to realize remote IO expansion, perfect for LED display control, automatic switching and robot control systems.

For convenient industrial deployment, DIN rail mount compatible expansion accessories and enclosure boards are available. The DNMEGA1 terminal block adapter enables neat wiring for Arduino MEGA2560, while the 2.4G NodeMCU ESP8266 expansion board supports wireless WIFI connection, ideal for industrial IoT and smart controller solutions.

All expansion boards adopt robust screw terminal design for stable wiring. OEM & ODM cus tomization is supported to meet your unique automation, prototype development and smart equipment requirements. Contact our team to find the matching expansion solution for your controller. For details, please contact me through email: sales@hyhc.com.cn